Turn Fat Into Fuel Cutler Nutrition's Liquid L Carnitine 3000 is your go to for clean energy, enhanced endurance, and serious fat metabolismwithout the stimulants. Available in three delicious flavorsno mixing, no Propionyl L Carnitine for Erectile Dysfunction: What the Evidence Shows and How to Approach It Acetyl L Carnitine, 500 mg, 120 Vegetarian Capsules If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.